最新Section THE NERVOUS PATHWAYS 神经传导路-药学医学精品资料.ppt

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1、最新SectionTHENERVOUSPATHWAYS神经传导路-药学医学精品资料A.TheSensory(Ascending)Pathways1.Deep&discriminatorysensationProprioceptive(deep)sense(本体感觉):bodyposture,movement,vibrationandpressure.discriminatorysense(精细触觉):size,shape,textureandtwopointdiscrimination.SystematicAnatomy2DeptofAnatomy,M

2、edicalCollege,QingdaoUniversityReceptorsmusclespindlestendonspindlesPacini’scorpuscles(肌梭,腱梭,P小体)IIIMed.Lemniscus(内侧丘系)III丘脑皮质束(丘脑中央辐射)cerebralcentersCortexofthesup.andmiddlepartsofpostcentralgyrus.Posteriorpartofparacentrallobule(中央后回上中部皮质,中央旁小叶后部)Spinalnn.(脊N)(薄束T4,楔束T4)(内侧丘系

3、交叉)(薄束核,楔束核)(脊神经节)(丘脑腹后外侧核)(内囊后肢)(内弓状纤维)1)Consciousproprioceptivesensorypathways(意识性本体感觉传导通路)SystematicAnatomy3DeptofAnatomy,MedicalCollege,QingdaoUniversity1)PathwayofPain&ThermalsensationoftheTrunk&LimbsSystematicAnatomy7DeptofAnatomy,MedicalCollege,QingdaoUniversityRece

4、ptorsfreen.endings(痛)Krause'sendbulbs(冷)Ruffiniendorgans(热)IIItrigeminallemniscus(三叉丘系)IIIint.cap.内囊后肢cerebralcenterscortexoftheinferiorpartofpostcentralgyrus.(中央后回下部皮质)(三叉神经脊束核)(V神经节)(丘脑腹后内侧核)(三叉神经)(三叉神经脊束)丘脑中央辐射(丘脑皮质束)2)Pain&ThermalSensationofHeadandFace(头面部痛温觉)SystematicAn

5、atomy8DeptofAnatomy,MedicalCollege,QingdaoUniversity2)Pain&ThermalSensationofHeadandFace(头面部痛温觉)SystematicAnatomy9DeptofAnatomy,MedicalCollege,QingdaoUniversity(损伤部位)感觉障碍表现PeripheralNS(周围神经)SpinalCord(脊髓)Internalcapsule(内囊)Centers(中枢)Thalamus(丘脑)(脑干延髓)subcutaneousnerve(皮神经):全部感觉

6、消失,无汗mixednerve(混合神经):全部感觉消失,支配肌肉软瘫posteriorroot后根):节段性全部感觉消失(交叉性痛温觉消失:同侧面部,对侧躯体)(偏身,多伴有自发性痛疼)(对侧三偏:硬瘫,痛、温、本体、精细触觉消失,视觉消失)(对侧相应区感觉消失)posteriorhorn(后角):同侧节段低1-2节痛温觉消失,Ant.commissure(白质前连合):对称节段性痛温觉消失Tract(传导束):分离性感觉消失)SummaryofSensoryDisturbance(感觉障碍小结)SystematicAnatomy10DeptofAna

7、tomy,MedicalCollege,QingdaoUniversityRECEPTORSfreen.endings(毛囊周围神经末梢tactilecorpuscles(触觉小体)IIIIII丘脑中央辐射(丘脑皮质束)内囊后肢CEREBRALCENTERScortexofthesup.andmiddlepartsofpostcentralgyrus.Posteriorpartofparacentrallobule(中央后回上中部皮质,中央旁小叶后部)spinalnn.(脊N)(脊髓白质前连合)(脊髓后角固有束核)(脊神经节)(丘脑腹后外侧核)(

8、脊髓丘系)(脊髓丘脑前束)3)TactilePathwayofTrunkandL